Answer:
yea
Step-by-step explanation:
cuz then there would be a graph and stuff and you would analyze which student spends more time
Answer: 
<u>Step-by-step explanation:</u>
with a scale factor
length becomes scale factor * length
area becomes scale factor^2 * area
volume becomes scale factor ^3 * volume
if the diameter is doubled the scale factor is 2
Volume becomes 2^3 * volume
the volume increases by a factor of 8
30 is the value of the 3 in 6035
